Bluetooth typically offers an effective communication range of several meters to over ten meters, requires power from the lock itself, and supports two-way data exchange with a mobile app. NFC has an extremely short operating range, generally within 10 cm, and can be triggered by simply bringing a phone or card close, allowing the lock to be designed in a passive mode. RFID, depending on the frequency band, can operate from a few centimeters to several meters and is commonly used for one-way identification, such as reading access cards or tags. These differences directly influence the lock's installation method and user experience.

First, identify who will be unlocking—employees, members, travelers, or technicians—as different user groups suit different technologies. Second, assess whether the installation environment can easily provide power; Jintai Industrial's IoT smart locks can integrate Bluetooth, NFC, RFID, and cloud connectivity, with the actual configuration depending on the cabinet and site conditions. Third, determine whether two-way data transmission is needed, such as unlocking logs and permission management, which affects whether active communication like Bluetooth is required. For details on distance limitations, certification standards, and test data, it is recommended to confirm with the manufacturer during the inquiry stage to avoid specification misunderstandings.